EP0903941A1 - Einrichting zum Zuweisen von Übertagungskanälen an Endstellen eines Dienste-auf-Abruf Systems - Google Patents
Einrichting zum Zuweisen von Übertagungskanälen an Endstellen eines Dienste-auf-Abruf Systems Download PDFInfo
- Publication number
- EP0903941A1 EP0903941A1 EP98440199A EP98440199A EP0903941A1 EP 0903941 A1 EP0903941 A1 EP 0903941A1 EP 98440199 A EP98440199 A EP 98440199A EP 98440199 A EP98440199 A EP 98440199A EP 0903941 A1 EP0903941 A1 EP 0903941A1
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- EP
- European Patent Office
- Prior art keywords
- transmission channels
- end2
- end1
- group
- interface
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/16—Analogue secrecy systems; Analogue subscription systems
- H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
- H04N7/17309—Transmission or handling of upstream communications
- H04N7/17318—Direct or substantially direct transmission and handling of requests
Definitions
- the invention relates to a device for assigning Transmission channels at the end points of a service-on-demand system the preamble of claim 1.
- a services-on-demand system is, for example, from the electronics magazine 5/1995, pages 50 to 58.
- On call of a service requests a terminal using its set-top box Establishing a connection to the server.
- the server provides the terminal Transmission channel ready, through which the called up service initially optical paths to the BONT and then electrical paths to reached the terminal.
- each terminal only has the same transmission capacity Provides. This can e.g. also in each group only maximum 32 of the 64 terminal stations connected to the BONT simultaneously services recall.
- system expansion e.g. by connection additional set-top boxes to an existing BONT, that must entire system can be switched off to split the New transmission channels to the end stations and the groups configure.
- the decor is special in that characterized in that they have a variable association between Provides transmission channels and terminals, regardless of the Group affiliation of the terminal stations.
- the transmission channels are not fixed distributed to the two groups, but largely free for all end stations available.
- Transmission channel 1 through terminal 1 from group 1 and and transmission channel 2 occupied by terminal 25 from group 2 be.
- a minimum number of freely available To be able to reserve transmission channels are, for example, 16 of the 64 Transmission channels reserved as a minimum number for group 1 and others 16 of the 64 transmission channels reserved as a minimum number for group 2.
- the remaining 32 transmission channels can then depend on Traffic volume and demand from both Group 1 and can also be used by group 2 terminals.
- This provides Free space and adapts the assignment of transmission channels automatically to traffic.
- more than one transmission channel is assigned to each terminal can be expanded, which increases the scope, e.g. can Services with different transmission capacity, e.g. for different image qualities, offered at different fees become.
- the minimum number of the reserved transmission channels can be varied dynamically. This provides the additional advantage of an even more flexible assignment of Transmission channels. For example, after commissioning of a new or expanded system the minimum numbers without Interruption of operations changed and to the current Traffic volume can be adjusted, ensuring optimal utilization of the available transmission capacity can be achieved.
- the Transmission channels in the memory are temporarily blocked virtually. This has the advantage that even in the event of a malfunction one or Several transmission channels require repair of the system remains operationally limited by only repairing Transmission channels are blocked virtually and are therefore considered to be occupied.
- FIG. 1 shows a schematic Representation of a services-on-demand system with an inventive Device for assigning transmission channels.
- the service-on-demand system SYS a so-called service-on-demand System, includes a server SER, an administrative unit VER, a device according to the invention for assigning Transmission channels and several end points END1, END2.
- the server SER is ON via the device with the multiple end points END1, END2 connected via a point-to-multipoint connection.
- the Server SER serves the end stations END1, END2 services to deliver.
- the services include Pay Per View, Near Video on demand, video on demand, telelearning / teleteaching, Information services, teleshopping or video games are available.
- END2 selects one via a decoder so-called set-top box a service that is then sent to him by the server SER is provided, e.g. by dubbing the retrieved Video films.
- the server SER requires at least one for dubbing free transmission channel.
- the end point END1; END2 needs to know which one Transmission channel used by the server SER to the dubbed To receive video. To assign the transmission channels, the Device ON used.
- the device ON for assigning transmission channels at terminal stations END1, END2 contains at least two interfaces S1, S2 to Connect the device EIN with several end points END1, END2.
- Each Interface S1, S2 is via a separate line, e.g. a Coaxial cable with a group of end points END1, END2 connected.
- the interfaces S1 and S2 each serve the Protocol implementation, as a transmission unit for the transmission of information from the device ON to the end points END1, END2 and as Receiver unit for receiving information from the end stations END1, END2.
- the device EIN further includes a memory MEMO in which a Assignment table is stored.
- the memory is MEMO, for example a so-called RAM, EEPROM or a flash.
- the allocation table contains entries about currently available and currently occupied Transmission channels for the transmission of end points END1, END2 called services. For example, a transmission channel is considered occupied if for an individual transfer from server SER to one certain end point END1, END2 is used. So is one Transmission channel with a video-on-demand connection only made available for a specific terminal END1, END2 in order to End point END1, END2 operations such as fast forwarding, fast To allow rewinding or image stop.
- a transmission channel can also be connected from several end points END1, END2 can be used at the same time, since only one unidirectional Information flow from the server SER to the end points END1, END2 takes place.
- the transmission channel is then considered as long as one of the terminals END1, END2 participating in the near-video-on-demand service uses the service or the transfer is complete.
- the assignment table is designed in such a way that a variable assignment between transmission channels and end stations END1, END2 is possible, regardless of the group affiliation of the end stations.
- Group 1 which is connected to interface S1 contains, for example, 10 end points END1.
- 10 transmission channels are provided to supply the 20 end points END1, END2. Due to an estimated volume of traffic, 10 transmission channels should be sufficient without bottlenecks, since generally no more than 50% of the end points END1, END2 of a group want to use a service at the same time. It would therefore be sufficient to allocate 5 selected transmission channels to group 1 for free use and 5 further transmission channels to group 2.
- the device EIN furthermore contains a control unit CTRL, which with the interfaces S1, S2 and the memory MEMO is connected.
- the Control unit CTRL is for example a processor, e.g. a so-called DSP or a microprocessor.
- the control unit CRTL is suitable Connection requests from individual end points END1, END2 to Receive retrieval of services. For this there is a in the control unit CTRL Signaling unit provided.
- the signaling unit detects one Connection request sent from a terminal END1, END2 and then switches a control channel between server SER and terminal END1, END2 free, so that the terminal END1, END2 their desired Service.
- the control unit CTRL then points to the terminal END1, END2 at least one transmission channel selected from the available in the MEMO memory and adapted in number to the called service.
- the end point END1, END2 can then be the one called Service available via the assigned transmission channel or channels be put.
- the assigned one or more Transmission channels in memory MEMO noted as occupied.
- the control unit CTRL can For example, be programmed so that after a message to a terminal END1, END2 that a connection cannot be established the memory MEMO is monitored and the corresponding end point END1, END2 informs as soon as a transmission channel is considered unoccupied and is available again.
- the control unit CTRL is suitable for assigning the transmission channels in such a way that for each group of end points END1, END2 Minimum value of assignable transmission channels not undercut and a maximum value of assignable transmission channels is not exceeded the minimum and maximum values are not the same.
- Group 1 which is connected to the interface S1 is connected, for example, contains 30 end points END1.
- the absolute number 10 represents the minimum value that at Initialization of the system SYS can be entered in the control unit CTRL.
- the remaining 10 transmission channels can then be sent from both end stations END1 of group 1 as well as of end points END2 of group 2 used so that there is a maximum value of 20 transmission channels for each Group results.
- the maximum value can be seen when initializing the system SYS can be entered into the control unit CTRL, e.g. manually via a Keyboard. In the event that END1; END2 more transmission channels are requested than by the maximum value are specified, e.g.
- the control unit CTRL can be programmed, for example, that it is suitable, the minimum values and / or the maximum values to change dynamically; e.g. can by the control unit CTRL the actual traffic volume is monitored during the initialization phase and the minimum and maximum values are adapted to it.
- the dynamic changes in the minimum and maximum values is carried out without interrupting operation, for example by means of a Keyboard software-programmed the values or the Control unit CRTL is programmed to adapt performs automatically.
- the latter is realized, for example, in that the control unit over a fixed period, e.g. a week, always that Number of transmission channels occupied by a group at the same time noted and then the maximum number of occurrences Redefine assignments as the minimum value for the respective group.
- control unit CTRL can be programmed in such a way that it is suitable for individual transmission channels or groups of Temporarily block transmission channels in the MEMO memory, see above that these transmission channels are considered occupied.
- This has the advantage that e.g. in the case of repair of a transmission channel, not the whole System must be switched off, only the one to be repaired Transmission channel for all end points END1, END2 or for a group is not available from terminal stations for the duration of the repair.
- the End points END1, END2 are thus during a repair Transmission channel e.g. 19 of the 20 transmission channels continue to Available.
- By virtually locking and unlocking Transmission channels can also easily increase capacity which is available for a certain number of end points END1, END2 standing transmission channels can be varied.
- the system is e.g. extended, e.g. by connecting additional end points END1, END2 or by providing further, possibly Transmission capacity of more intensive services, so the number of Transmission channels to the then increased traffic can be adapted by additionally provided transmission channels are activated and thus to the end points END1, END2 Use of services are available.
- the system SYS can also contain an administrative unit VER.
- the management unit VER contains, for example, a processor, by means of which they control the traffic volume in the entire SYS system supervised.
- the system has several devices for Assignment of transmission channels, each with the central server SER and the central administrative unit VER are connected. To this Monitoring functions can be performed in the administrative unit VER centralize what with a saving in technical effort goes along.
- Managing the SYS system is usually also called Management or network management. So it can Administrative unit, for example, monitoring the functionality of the transmission channels through e.g. Test measurements on unoccupied Take over transmission channels and then the device ON Send instructions to virtually block individual transmission channels, if this e.g. are faulty and a repair is necessary.
- the For this purpose device EIN contains an interface S3 Administrative unit VER.
- the control unit CTRL is S3 with this interface connected and e.g. suitable for S3 information via this interface to receive which of the transmission channels to block virtually are.
- the interface S3 is used for protocol conversion, as a sending unit for Transfer of information from the EIN facility to Administrative unit VER and as a receiving unit for receiving Information from the administrative unit VER.
- the control unit CTRL can be suitable, via the interface S3 Receive information about which minimum values and which maximum values for which group of end points END1, END2 should apply.
- the administrative unit VER monitors the current traffic volume and thereby determines the minimum and maximum values that a optimal use of the specified transmission capacity and the End stations END1, END2 offer the maximum service.
- the end points END1, END2 should have the possibility of connections with to be able to establish a selectable number of transmission channels or retrieve services for its provision a different one Number of transmission channels is required.
- the control unit CTRL is programmed for this purpose in such a way that e.g. is suitable from the connection request of individual end points END1, END2 corresponding number of requested transmission channels detect and the respective end point END1, END2 the detected number of transmission channels for the duration of the use of the assigned to the respective service.
- Interface S4 With the device ON for the assignment of transmission channels is one Interface S4 to server SER provided.
- the control unit CTRL is with connected to this interface S4 and suitable, the information which Transmission channels they have assigned to which end points END1, END2 to be transmitted to the server SER via the interface S4, so that the server SER knows the transmission channel in which it is calling the called service Should provide.
- the interface S4 is used for protocol implementation, as Sending unit for transmitting information from the device EIN to the server SER and as a receiving unit for receiving information from server SER.
- the facility can also be assigned before Transmission channels in contact with the server SER in order For example, to ask the server SER how many transmission channels for needs a service called by a terminal END1, END2 become.
- the SYS system is purely electrical.
- the Invention can also be used in a hybrid fiber / coaxial cable system be applied.
- the device is in the server, for example SER arranged and the interface S1 contains an electrical / optical converter, to set up using a hub and multiple BONTs with to connect a large number of end points END1.
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
Description
Die Gruppe 1, die an die Schnittstelle S1 angeschlossen ist, beinhaltet beispielsweise 10 Endstellen END1. Die Gruppe 2, die an die Schnittstelle S2 angeschlossen ist, beinhaltet beispielsweise 10 Endstellen END2. Es sind 10 Übertragungskanäle vorgesehen, um die 20 Endstellen END1, END2 zu versorgen. Aufgrund eines geschätzten Verkehrsaufkommen müßten 10 Übertragungskanäle ausreichen ohne daß es zu Engpässen kommt, da in der Regel nie mehr als 50% der Endstellen END1, END2 einer Gruppe gleichzeitg einen Dienst in Anspruch nehmen wollen. Somit wäre es ausreichend 5 ausgewählte Übertragungskanäle der Gruppe 1 zur freien Verfügung zuzuordnen und 5 weitere Übertragungskanäle der Gruppe 2. Bedingt durch statistische Toleranzen bei der Schätzung des Verkehraufkommens, die beispielsweise eine rege Inanspruchnahme von Diensten von Endstellen END1 der Gruppe 1 gegenüber einer zurückhaltenden Inanspruchnahme von Diensten von Endstellen END2 der Gruppe 2 außer Acht ließen, könnte es vorkommen, daß 8 der 10 Endstellen der Gruppe 1 einen Dienst in Anspruch nehmen wollen, während nur 2 der 10 Endstellen END2 der Gruppe 2 dies gleichzeitig wollten. Bei einer festen Zuordnung der Übertragungskanäle in 5 für Gruppe 1 und 5 für Gruppe 2 wäre dies nicht möglich. Aus diesem Grund ist eine variable Zuordnung der Übertragungskanäle gewählt, die lediglich 10 frei zuweisbare Übertragungskanäle für insgesamt 20 Endstellen END1, END2, unabhängig von einer Gruppenzugehörigkeit vorsieht, so daß auch 8 Endstellen END1 der Gruppe 1 und 2 Endstellen END2 der Gruppe 2 gleichzeitig einen Dienst in Anspruch nehmen können. Zusätzlich kann auf diese Weise einer Endstelle END1, END2 auch mehr als ein Übertragungskanal, z.B. 2 oder 3 gleichzeitig zugewiesen werden.
Claims (8)
- Einrichtung (EIN) zum Zuweisen von Übertragungskanälen an Endstellen (END1, END2) eines Dienste-auf-Abruf Systems (SYS),
dadurch gekennzeichnet,
daß mindestens zwei Schnittstellen (S1, S2) zum Verbinden der Einrichtung (EIN) mit mehreren Endstellen (END1, END2) vorgesehen sind, wobei jede Schnittstelle (S1, S2) über eine separate Leitung mit einer Gruppe von Endstellen (END1, END2) verbunden ist, daß ein Speicher (MEMO) vorgesehen ist, in dem eine Zuweisungstabelle beinhaltend Einträge über aktuell verfügbare und aktuell belegte Übertragungskanäle zur Übertragung von von Endstellen (END1, END2) abgerufenen Diensten abgespeichert ist, wobei eine variable Zuordnung zwischen Übertragungskanälen und Endstellen (END1, END2) möglich ist, unabhängig von der Gruppenzugehörigkeit der Endstellen (END1, END2), daß eine Steuereinheit (CTRL) vorgesehen ist, die mit den Schnittstellen (S1, S2) und dem Speicher (MEMO) verbunden ist, und daß die Steuereinheit ( CRTL ) geeignet ist, Verbindungsanforderungen von einzelnen Endstellen ( END1, END2 ) zum Abruf von Diensten zu empfangen, den einzelnen Endstellen (END1, END2) daraufhin jeweils mindestens einen Übertragungskanal zuzuweisen und diese Zuweisung im Speicher (MEMO) zu vermerken, sofern der mindestens eine Übertragungskanal im Speicher als aktuell verfügbar gilt und den einzelnen Endstellen (END1, END2) mitzuteilen, daß momentan ein Verbindungsaufbau nicht möglich ist, sofern im Speicher ( MEMO ) alle Übertragungskanäle als belegt gelten. - Einrichtung ( EIN ) nach Anspruch 1, dadurch gekennzeichnet, daß die Steuereinheit ( CTRL ) geeignet ist, die Zuweisung der Übertragungskanäle derart durchzuführen, daß für jede Gruppe von Endstellen (END1, END2) ein Minimalwert an zuweisbaren Übertragungskanälen nicht unterschritten und ein Maximalwert an zuweisbaren Übertragungskanälen nicht überschritten wird, wobei Minimalwert und Maximalwert ungleich sind, so daß für den Fall, daß aus einer Gruppe von Endstellen (END1; END2) mehr Übertragungskanäle angefordert werden, als durch den Maximalwert vorgegeben sind, für diese Gruppe alle noch verfügbaren Übertragungskanäle als belegt gelten und daß für jede Gruppe von Endstellen (END1; END2) stets eine minimale Anzahl von Übertragungskanälen zur freien Verfügung stehen.
- Einrichtung ( EIN ) nach Anspruch 2, dadurch gekennzeichnet, daß die Steuereinheit ( CTRL ) geeignet ist, die Minimalwerte und die Maximalwerte dynamisch zu verändern.
- Einrichtung ( EIN ) nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, daß die Steuereinheit ( CTRL ) geeignet ist, einzelne Übertragung kanäle im Speicher ( MEMO) zeitweise virtuell zu sperren, so daß diese Übertragungskanäle als belegt gelten.
- Einrichtung (EIN) nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß sie eine Schnittstelle (S3) zu einer Verwaltungseinheit ( VER ) beinhaltet, und daß die Steuereinheit ( CTRL ) mit dieser Schnittstelle (S3) verbunden ist und geeignet ist, über diese Schnittstelle (S3) Information darüber zu empfangen, welche Minimalwerte und welche Maximalwerte für welche Gruppe von Endstellen ( END1, END2 ) gelten sollen.
- Einrichtung (EIN) nach Anspruch 4, dadurch gekennzeichnet, daß sie eine Schnittstelle (S3) zu einer Verwaltungseinheit (VER) beinhaltet, und daß die Steuereinheit (CTRL) mit dieser Schnittstelle (S3) verbunden ist und geeignet ist, über diese Schnittstelle (S3) die Information zu empfangen, welche der Übertragungskanäle virtuell zu sperren sind.
- Einrichtung ( EIN ) nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, daß die Steuereinheit geeignet ist, aus der Verbindungsanforderung einzelner Endstellen (END1, END2) eine entsprechende Anzahl von angeforderten Übertragungskanälen zu detektieren und der jeweiligen Endstelle (END1, END2) die detektierte Anzahl von Übertragungkanälen für die Dauer der Inanspruchnahme des jeweiligen Dienstes zuzuweisen.
- Einrichtung (EIN) nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, daß sie eine Schnittstelle (S4) zu einem Server (SER) beinhaltet, und daß die Steuereinheit ( CTRL ) mit dieser Schnittstelle (S4) verbunden ist und geeignet ist, die Information welche Übertragungskanäle sie welcher Endstelle (END1, END2) zugewiesen hat über die Schnittstelle (S4) dem Server (SER) zu übertragen.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19741885 | 1997-09-23 | ||
DE19741885A DE19741885A1 (de) | 1997-09-23 | 1997-09-23 | Einrichtung zum Zuweisen von Übertragungskanälen an Endstellen eines Dienste-auf-Abruf Systems |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0903941A1 true EP0903941A1 (de) | 1999-03-24 |
EP0903941B1 EP0903941B1 (de) | 2004-03-31 |
Family
ID=7843302
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98440199A Expired - Lifetime EP0903941B1 (de) | 1997-09-23 | 1998-09-07 | Einrichtung zum Zuweisen von Übertragungskanälen an Endstellen eines Dienste-auf-Abruf Systems |
Country Status (5)
Country | Link |
---|---|
US (1) | US6591422B1 (de) |
EP (1) | EP0903941B1 (de) |
JP (1) | JPH11205382A (de) |
DE (2) | DE19741885A1 (de) |
ES (1) | ES2215287T3 (de) |
Cited By (4)
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EP1449373A2 (de) * | 2001-09-20 | 2004-08-25 | Time Warner Cable | Technik zum effektiven bereitstellen von programmaterial in einem kabelfernsehsystem |
US10200731B2 (en) | 2010-09-03 | 2019-02-05 | Time Warner Cable Enterprises Llc | Digital domain content processing and distribution apparatus and methods |
US10411939B2 (en) | 2010-05-27 | 2019-09-10 | Time Warner Cable Enterprises Llc | Digital domain content processing and distribution apparatus and methods |
US11509866B2 (en) | 2004-12-15 | 2022-11-22 | Time Warner Cable Enterprises Llc | Method and apparatus for multi-band distribution of digital content |
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FI107859B (fi) * | 1998-03-23 | 2001-10-15 | Nokia Networks Oy | Tilauspalvelut matkaviestinjärjestelmässä |
US6697376B1 (en) * | 1998-11-20 | 2004-02-24 | Diva Systems Corporation | Logical node identification in an information transmission network |
US6718552B1 (en) * | 1999-04-20 | 2004-04-06 | Diva Systems Corporation | Network bandwidth optimization by dynamic channel allocation |
US6519773B1 (en) | 2000-02-08 | 2003-02-11 | Sherjil Ahmed | Method and apparatus for a digitized CATV network for bundled services |
US20050198688A1 (en) * | 2000-09-19 | 2005-09-08 | Fong Thomas K.T. | System and method for digitally monitoring a cable plant |
US20090083820A1 (en) * | 2007-09-25 | 2009-03-26 | Comcast Cable Holdings, Llc | Re-transmission of television channels over network |
JP5088152B2 (ja) * | 2008-01-23 | 2012-12-05 | 富士通株式会社 | 映像放送プログラム、映像放送方法、映像放送装置および映像放送システム |
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EP0698998A1 (de) * | 1994-08-24 | 1996-02-28 | Siemens Aktiengesellschaft | Verfahren und Schaltungsanordnung zur Steuerung eines Verbindungsaufbaus für interaktive Dienste |
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-
1998
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- 1998-09-07 EP EP98440199A patent/EP0903941B1/de not_active Expired - Lifetime
- 1998-09-07 ES ES98440199T patent/ES2215287T3/es not_active Expired - Lifetime
- 1998-09-18 JP JP10264981A patent/JPH11205382A/ja active Pending
- 1998-09-23 US US09/159,247 patent/US6591422B1/en not_active Expired - Fee Related
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Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
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EP1449373A2 (de) * | 2001-09-20 | 2004-08-25 | Time Warner Cable | Technik zum effektiven bereitstellen von programmaterial in einem kabelfernsehsystem |
EP1449373A4 (de) * | 2001-09-20 | 2005-05-18 | Time Warner Cable | Technik zum effektiven bereitstellen von programmaterial in einem kabelfernsehsystem |
US9654811B2 (en) | 2001-09-20 | 2017-05-16 | Time Warner Cable Enterprises Llc | Technique for effectively providing program material in a cable television system |
US9736512B2 (en) | 2001-09-20 | 2017-08-15 | Time Warner Cable Enterprises Llc | Technique for providing programming content through a communications network having limited bandwidth |
US10432990B2 (en) | 2001-09-20 | 2019-10-01 | Time Warner Cable Enterprises Llc | Apparatus and methods for carrier allocation in a communications network |
US11303944B2 (en) | 2001-09-20 | 2022-04-12 | Time Warner Cable Enterprises Llc | Apparatus and methods for carrier allocation in a communications network |
US11509866B2 (en) | 2004-12-15 | 2022-11-22 | Time Warner Cable Enterprises Llc | Method and apparatus for multi-band distribution of digital content |
US10411939B2 (en) | 2010-05-27 | 2019-09-10 | Time Warner Cable Enterprises Llc | Digital domain content processing and distribution apparatus and methods |
US10892932B2 (en) | 2010-05-27 | 2021-01-12 | Time Warner Cable Enterprises Llc | Digital domain content processing and distribution apparatus and methods |
US10200731B2 (en) | 2010-09-03 | 2019-02-05 | Time Warner Cable Enterprises Llc | Digital domain content processing and distribution apparatus and methods |
US10681405B2 (en) | 2010-09-03 | 2020-06-09 | Time Warner Cable Enterprises Llc | Digital domain content processing and distribution apparatus and methods |
US11153622B2 (en) | 2010-09-03 | 2021-10-19 | Time Warner Cable Enterprises Llc | Digital domain content processing and distribution apparatus and methods |
Also Published As
Publication number | Publication date |
---|---|
DE19741885A1 (de) | 1999-03-25 |
JPH11205382A (ja) | 1999-07-30 |
DE59811086D1 (de) | 2004-05-06 |
US6591422B1 (en) | 2003-07-08 |
ES2215287T3 (es) | 2004-10-01 |
EP0903941B1 (de) | 2004-03-31 |
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